Types and Function of Teeth

Teeth

The teeth are also located in the oral cavity. An adult with a full set of teeth has 32 teeth, compared to a child between the ages of 2 and 6 who has 20. The incisors, or cutting teeth, are located at the front of the oral cavity, while the molars, or larger grinding teeth, are located in the back. The teeth's primary use is to chew, chop, and ground food. The tooth sockets hold the teeth in place.

Deciduous teeth arrangement:

Permanent teeth arrangement:

At around 6 months of age, the baby or deciduous teeth start to erupt. The incisors are the first eight deciduous teeth to emerge from the gums. The molars and canines (eye teeth) emerge later. By the time a youngster is 2 or 2.5 years old, all 20 baby teeth have typically come in. The permanent teeth grow from buds that are present at birth within the jaw bones during the first two years of life. At the age of six, the first permanent tooth—the molar—emerges. Prior to the loss of the baby incisors, this permanent tooth erupts. Deciduous teeth require good care since decay and infection of nearby deciduous molars may travel to and affect growing permanent teeth.

Permanent Teeth (Adult Teeth):

The second set of teeth that develop in a human being are permanent teeth, or adult teeth. The jawbones expand as a youngster develops, allowing room for more teeth. The infant incisors loosen and are replaced by permanent incisors after the molars erupt at the age of 6 years. The baby molars are then replaced by the bicuspids (premolars) of the permanent teeth, which come after the baby canines (cuspids) and before the permanent canines and canines. At the age of 12, the larger jawbones are now prepared for the eruption of second permanent molar teeth. The wisdom teeth may erupt in the late teens or after. In some situations, the third molars may need to be removed because the jaw is too small for them or there are other anomalies.

Time of teeth eruption:

Structure of the Teeth:

Each tooth has two primary components: a crown that extends past the gum line and a root that is anchored to the alveolar process of the jaw. Neck of tooth refers to the area where these pieces come together. Glossy white enamel that covers the crown is primarily made of calcium salts. It is the body's toughest material. Enamel that has been harmed or worn down by abrasion is not replaced. With time, enamel may deteriorate. Underneath the enamel of a tooth is the dentin, a living, cellular component that is similar to bone but harder. The central chamber of the tooth, known as the pulp cavity and filled with blood vessels, nerves, and connective tissue, is surrounded by dentin. This cavity is reached by blood vessels and nerves that extend into the root through tubular root canals.

Blood Supply of Teeth:

The branches of the maxillary arteries supply the majority of the arterial blood, and the internal jugular veins drain the venous blood.

Teeth Nerve Supply:

Branch maxillary nerves supply the higher teeth, and mandibular nerves supply the lower teeth. Both are the trigeminal nerve's branches (CNV).